Maladie pulmonaire obstructive chronique dans l'espèce équine

in Annales de Médecine Vétérinaire (1996), 140

Equine chronic obstructive pulmonary disease (COPD), also known as <<heaves>>, is a respiratory syndrome associated with stabling or exposure to hay or conditions in which molds or dust prevail. This ... [more ▼]

Equine chronic obstructive pulmonary disease (COPD), also known as <<heaves>>, is a respiratory syndrome associated with stabling or exposure to hay or conditions in which molds or dust prevail. This paper reviews the different aspects of the equine COPD. Etiology, potential evolutions, treatment and prevention of this disease are evolved. [less ▲]

Chronic Exposure of Pigs to Airborne Dust and Endotoxins in an Environmental Chamber: Technical Note

in Veterinary Research (1996), 27(6), 569-578

A new experimental setup was developed to expose pigs to dust and airborne endotoxins in an environmental chamber, at levels liable to be encountered in pig farm buildings. The following parameters were ... [more ▼]

A new experimental setup was developed to expose pigs to dust and airborne endotoxins in an environmental chamber, at levels liable to be encountered in pig farm buildings. The following parameters were evaluated in a chamber containing two pigs of 10 kg body-weight: inhalable and respirable dust gravimetric concentrations were measured using area samplers and expressed as mg/m3. The respirable dust concentration was also measured using a "TM digital microP respirable dust-measuring instrument', which has been shown to give similar results to the gravimetric method. The endotoxin concentration was evaluated using the Limulus-assay and expressed as ng/m3 of air containing the inhalable or respirable dust or as ng/mg of inhalable and respirable dust. Feed flour dust was introduced into the chamber to obtain different concentrations of inhalable and respirable dust ranging from 3.62 to 76.66 mg/m3 and from 0.24 to 1.40 mg/m3, respectively. The endotoxin concentration was modulated by mixing the feed flour with Escherichia coli endotoxins before blowing it into the chamber. The endotoxin concentrations in the air containing inhalable or respirable dust ranged from 28.9 to 270.0 ng/m3 and from 2.22 to 36.38 ng/m3, respectively, depending on the amount of endotoxins added to the dust. Data were also obtained in a piggery. The experimental setup detailed in this paper could be used to study the significance of air contaminants in the development of pig respiratory diseases. [less ▲]

Application du programme PEGASE au bassin de la Zorn. Département du Bas-Rhin (France)

Report (1996)

Le Conseil Général du Bas-Rhin a décidé la réalisation d'un Schéma Directeur Départemental d'Assainissement. Dans le cadre de cette phase de définition de la méthodologie, le Conseil Général a chargé l ... [more ▼]

Le Conseil Général du Bas-Rhin a décidé la réalisation d'un Schéma Directeur Départemental d'Assainissement. Dans le cadre de cette phase de définition de la méthodologie, le Conseil Général a chargé l'Université de Liège de réaliser la modélisation du calcul des flux polluants sur le bassin de la Zorn (affluent de la Moder). Cette modélisation a été réalisée en utilisant le modèle PEGASE (Planification et Gestion de l'Assainissement des Eaux), en cours d'adaptation pour le bassin géré par l'Agence de l'Eau Rhin-Meuse [less ▲]

Infection of cattle with Yersinia enterocolitica O:9 a cause of the false positive serological reactions in bovine brucellosis diagnostic tests.

in Veterinary Microbiology (1996), 48(1-2), 101-12

During the last four years, an increasing number of cattle herds were classified positive by brucellosis screening tests in areas of Belgium and France free of the disease. No clinical symptom of ... [more ▼]

During the last four years, an increasing number of cattle herds were classified positive by brucellosis screening tests in areas of Belgium and France free of the disease. No clinical symptom of brucellosis was reported in these animals and no Brucella abortus strains were isolated. After two years, no brucellosis outbreak was registered in all of the herds concerned. On this basis, all the serological reactions observed were classified as false positive. An ELISA using Yersinia Outer membrane Proteins (YOPs) as antigens was developed in order to discriminate between a Yersinia enterocolitica O:9 infection and a Brucella abortus infection. Antibodies against YOPs were detected in sera from Y. enterocolitica O:9 experimentally infected cattle (n = 4) but not in sera from B. abortus experimentally infected cattle (n = 4). In a field study, 66.7% of the 174 serum samples from cattle presenting false positive serological reactions showed anti-YOPs antibodies whereas only 10% of 454 sera, classified negative by the brucellosis screening tests, showed anti-YOPs antibodies. Our results suggest that infections with Y. enterocolitica O:9 may cause false positive reactions in brucellosis testing. [less ▲]

Retizonomonoletes hunanensis Fang et al. 1993 and the Retispora lepidophyta morphon.

in Inst. Géol. de l'Univ. Louvain (1996), 36

«Dans le leurre du seuil». I «tombeaux» di Macrí e la soglia della poesia. Per una 'lecture vierge' di un metodo critico. Appunti esperimenti e prove intorno a Semantica e metrica dei «Sepolcri» del Foscolo (1978/1995) e Il Cimitero marino di Paul Valéry (1947/1989)

in Dolfi, Anna (Ed.) Per Oreste Macrí (1996)

Notices

in Birchler Emery, Patricia; Bottini, Breno; Courtois, Chantal (Eds.) et al Musée-Musique. La musique et la danse dans l'Antiquité. Regards sur les collections du Musée d’art et d’histoire de Genève (1996)

Type II to type I transformation of chronically stimulated goat latissimus dorsi muscle: a histoenzymological, biochemical, bioenergetic, and functional study.

in European Surgical Research = Europäische Chirurgische Forschung = Recherches Chirurgicales Européennes (1996), 28

Five goat latissimus dorsi muscles (LDM) were submitted to a progressive chronic electrostimulation program to reach an integrated understanding of the fast-to-slow transformation process in large mammals ... [more ▼]

Five goat latissimus dorsi muscles (LDM) were submitted to a progressive chronic electrostimulation program to reach an integrated understanding of the fast-to-slow transformation process in large mammals. LDM were regularly sampled and followed during a period of 8 months. Each sample was simultaneously assessed for histoenzymological study, myosin and LDH isoforms and bioenergetic capacities [NADH dehydrogenase cytochrome c oxidoreductase (NADH Cyt c OR), succinate dehydrogenase cytochrome c oxidoreductase (Succ Cyt c OR), cytochrome c oxidase (Cyt c Ox) and LDH]. Such muscles were also tested with and without completion of II to I transformation for their mechanical properties in isometric and isotonic strain gauge testing. The conversion of fast-to-slow myosin monitored by heavy chain (HC I) and light chain slow component (LC2s) began a few days after stimulation and was almost 100% after 100 days. The H-LDH isoforms evolved similarly but did not reach 100% conversion after 200 days. The activity of respiratory chain oxidases increased within 36 h but to a variable extent and peaked after 32 days, corresponding to a 75% transformation of myosin compared to initial levels. NADH Cyt c OR, Succ Cyt c OR, and Cyt c Ox, respectively increased 10-, 5- and 5-fold. These activities then significantly decreased before the completion of the myofibrillar transformation and reached a plateau with stable activities that remained 2- to 3-fold higher than the unstimulated LDM. LDH activity sharply decreased until day 62 (5-fold) and then plateaued. Functionally, muscle showed a reduced speed of contraction and moderate reduction in power output but had become fatigue-resistant. This study documents the transformation process in large mammals and suggests the dynamic relation between workload, aerobic-anaerobic metabolism and the contractile myofibrillar system. [less ▲]

Seduzione borghese e cultura dell'artificio. Femmes fatales in Oriani e Chelli

in Italian Quarterly (1996), 129-130

O novo papel dos professores face às mundanças socias e economicas dos sistemes educativos

in García Garrido, José Luís (Ed.) A educação do futuro, o futuro da educação (1996)